feat: two calculator examples

Cargo.toml

@@ -31,6 +31,7 @@ split-debuginfo = "unpacked"
 [dev-dependencies]
 futures = "0.3.15"
 log = "0.4.14"
+num-format = "0.4.0"
 # For the tide ssr examples
 # async-std = { version="1.9.0", features=["attributes"] }
 # tide = { version="0.16.0" }
@@ -47,6 +48,7 @@ log = "0.4.14"
 # dioxus-webview = { path="./packages/webview", version="0.0.0" }
 # dioxus-hooks = { path="./packages/hooks", version="0.0.0" }
 rand = "0.8.4"
+separator = "0.4.1"
 serde = { version="1.0.126", features=["derive"] }
 surf = "2.2.0"